floss: metrics: start processing HFP and AVRCP profile metrics

Add HFP and AVRCP cases in the metric event processing to map their
connection state to the standard ENUM.

Added an AVRCP direction parameter as AVRCP profile to get
(dis)connecting state from the btif. Hence a device-initiated action
will be missing the ING state.

BUG: 240781725
Tag: #floss
Test: ./build.py
Test: emerge-${BOARD} floss
Test: gd/cert/run
Change-Id: Ia2fbb476e7b2352f75b1876f215c36914a52d7fe